Armature coating machine



May 3, 1932 L. c. GoAD ARMATURE COATING' MACHINE Filed March 8, 1929 3 Sheets-Sheet l N QW. Wma nununuun n u n e u u u u May 3, 1932. C, GOAD 1,856,757

RMATURE COATING MACHINE Filed March 8. 1929 3 Sheets-Sheet 2 May 3, 1932. L. c. GOAD ARMTURE COATING MACHINE Filed Narch, 1929 3 Sheetsfsheet 3 Patented May 3, 1932 LOUIS C. GOAD, OF MUNCIE, INDIANA., ASSIG-NOR T0 DELCO-REMY MUNCIE, INDIANA,

. ARMATURE COATIN G MACHINE Application led March 8,-1929. Serial No, 345,435.

rlhis invention relates to the manufacture of armatures for dynamo electric machines, and particularly to a machine for preparing the leads of armature conductors which are located in slots between riser ybars provided by lead receiving portions of the commutator for soldering the leads tO the lead receiving portions. This machine is especially adapted to prepare the armatures for the soldering Operation disclosed in the application of Ollie V. Barvzdgley, Serial N o; 172,479, filed March 3 192 f The chief Object ofthe invention is to reduce the cost of applying flux to the parts to be soldered and of reducing the cost of applying Oil to the end of the shaft adjacent the commutator segments so as to prevent solder adhering to the end of the shaft. In order to accomplish this aim, the invention provides a machine upon which each of these operations may be done automatically. Preferably, the machine comprises chain conveyors carrying lugs for engaging the ends Of the armature shaft. As the armatures are carried through the machine, the end of the shaft adjacent the commutator passes through an oil spray and while passing through this oil spray, it is rotated by a spinning mechanism; then it passes through a flux spray and by a brush for smearing the flux into the slots, the armature being rotated by another spinning mechanism when it passes through the flux spray and past the brush.

Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawings, wherein a preferred form of embodiment of the present invention is clearly shown.

In the drawings:

Fig. 1 is a plan view Of the machine.

Fig. 2 is a side elevation with the lower part of the frame broken away.

Fig. 3 is a sectional view of the machine taken on the line 3-3 of Fig. 1.

Fig. 4 is a sectional view taken on the line 4`4 of Fig. l. n

Fig. 5 is a fragmentary, sectional view taken on the line 5- 5 of Fig. 2.

Fig. 6 is a fragmentary, sectional view showing Fig. 7 7 7 of Fig'. 4.

Fig. 8 is a sec taken on the lin Figs. l and 2l than are Figs. 3,

Figs. 5 and 6 than are Figs. 3, The machine c for conveying th part Of the spinning mechanism. is a sectional view taken on the line tional view of the armature e 8-8 of Fig. 3.

are drawn to a smaller scale 4, 7 and 8.

are drawn to a larger scale 4, 7 and 8. Omprises a pair of conveyors e armatures through the machine, mechanism for applying the oil to the end of the armature shaft adjacent the commutator segments to be soldered, mechanism for applying the flux and a device-s, one for ing the applicat pair 'of spinning spinning the armature durion of the Oil and the other forspinning the armature during the application of the linx.

The conveyors chains 10 and 12 comprise a pair of conveyor guided by a pair Of angle iron beams 14 and 16 supported on pairs of legs 18, 19 and 2 and 16 are held of transverse me ends which have 10 and 12 pass over 0. The angle iron beams 14 in spaced relation by means mber 21 and by braces in the not been shown. The chains the driven sprockets 22 and 24 respectively keyed to the driven shaft 26, j ournalled in bearings 28 and 30 which are e secured to the legs 20. A sprocket chain 32 driven byV an electric of power drives keyed toa shaf motor -or any other source a spocket wheel 34 which is t 36 mounted On a suitable support, not shown. Also keyed Voii'the shaft 36 is a small 40 which drives the shaft 26.

sprocket wheel 38 driving chain the sprocket 42 mounted on The other ends of the chains 10 and 12 pass over a pair of sprockets 44 On the shaft 48, journalled and 52, secured of the chain 10 56 by means of in bearings 50 to legs 18. Every other link has a lug 54 to which is attached an armature shaft supporting member screws 58. The lug 56 has an inclined semi-cylindrical surface 60 which is designed to ac t as a bearing for one end of an armature shaft 57, and an inclined surface 61 which is movement of the designed to prevent endwise armature shaft. A notch 62 and 46 mounted CORPORATION, 0F j Y A CORPORATION or DELAWARE is provided in the bottom of this semi-cylindrical surface so as to permit oil, flux and other foreign substances to drain through this no-tch.

Every other link of chain 12 carries a lug 64 which has attached thereto a support 66 by mea-ns of screws 68. Member 66 has a semi-cylindrical inclined surface 70 which is designed to supportv the other end of the a1'- maturek shaft 55.7'. irFi'gs; readily' be seen that the supporting members for the armature carried.. by. the chains are so designed as to hold the armature 55 with the end of the shaftadj acent the commuf n tator segments 59 much lower than the other end-f of" thel shaft; The .supportingV member 56 is movedalong a guiding member 7.2'spaced from.: the angleA ironfbeamY 14.- by members '.74 attached thereto by screws 76 ,which also supportsl. a; transiferse member: 78. Itl canl be readily seen-Ay that` as1 theA conveyor chains 10 and.12-are actuated bythe driving mechanism already described, that the armatures .mountedf-onxthe supports 56 and 66 will be conveyed through the entire machine. These armaturesare placedion the conveyors 1() and-12 by the operator whoisstationed. to the right of the machine as .viewed i1i.Figs..1. and.v 2.

After they arel placed onthe conveyor they are conveyed to an oil spray whichis emitted from anozzle 8O mountedon the end` of a tubularimember 82supportedby abracket 84 which is attached to the angle ironbeam 14 by: screws 86. Member 82is supported in the bifurcated end 88 of bracket-1 841andf retained in this` position. by; screws 9.6. Oil under pressureis supplied byy a suitable-hose, not shown, connected. to the tubular terminal`92 ofmember 82.

AumotorrlOO is mountedfon a-.pair ofbrack et's,1'02 and 1041 attached sto the angle iron beam`- 14.. A belt' 106, drivenv by a pulley-108 fixedly attached to the arma-ture shaft 1`1O1of the electric motor-100, drives apulley 112 whichis-'xedly attached to a shaft. 114 jour.- n'alled in bearings 116. and 118 press-fitted into-a tubular sleeve 120'fiXed ink al bracket 122 attached to thek angle'iron beam'14as shown in Fig. 5. Y The shaft 114 has a' collar 124 abutting' the bearing 116'V on one side and abutting the pulley 112 on the other side. rEhe pulley 112`isheldfonz the'shaft.' 114 by. a nut 126. On the other end of the shaft-114 is fixedly attached aV sprocket wheel 128- which transmits motion from shaft114 to a sprocket 130'by a chain 132.7iiiedl'y attached to a tubular member 134 mounted' onl av stub shaft the :tubular member. '134; and?` clamped' by;v a

pair of washers 148 and 150 which are held in spaced relation between a collar 152 integral with member 134 and a nut 154 threadedly enffaging an end 156 of member 134. The tubular member 134 and the parts mounted thereon are heldon the stub shaft 136 by a nut 158 threadedly engaging the end 1.60 of the shaft 136. The spinning wheel 146 may` be made similar to a bufing wheel'l or for'tliat matter a discarded buffmg Wheel has been found to give very satisfactory. results.. I A detent 161 on the bracket 144 engages a l'ug`162 attached to the tubular portion.. of member. 122 by screws 163, only one of which is shown. The lug 162 limits the rotation. ofl the bracket 144m a counterclo ckwise direction;v aszvieWeddnFig; .2 :so :that

.the spinning wheel: 146 .cannot droprdowni in the path ofthe armature core A164:50 as toobstruct theY passage ofthe armature. This detentr161. and lug162f. are so'4 arranged however that the frictionzw-heel 146: is 'permitted to Lngage ythe:periphery. of; thexarmatureioore 16 Als the armature isr conveyedYV under; the spinning; wheel' -146 itis rotated4 by `the, Aspinning wheel so that the entire periphera'lsur.- face ofthe end'ofthe;a-rmatureshaftglGGwill be completely lubricated bywth'ef` oil. spray fromthenozzle'SOL Abracket167 attached '1" to the: angle ironbeam16prevents movement ofv the armature towards the` left'. in. Figa 4 causedby the inclinedzsurfa'cei of thespin ning-'wheel 146.

Af cover.' 1176hasbeeniprovidedfor prevent'.-

ing'tlie oil fromzsplashing; Any surplusiorl which; mayv be--appliedto tlie-end of sliaf-.t 57- is drained. through: the notch 62 into arpan 168 supportedion: the members 78.- 'Ehe-:oil in the vpan through drain 1.71;into a suitable receptacle 'not shown. After thearmature shaftfendfhas been coated" with oil or anyl other v suitable coating material, ,which will .prevent solder from adhering; to the end-'offthei shaft when it i's-dipped into awsolder lbath as disclosed in the application .for patent, Serial No.1f?2,479, supra, itr is conveyed toflu-X: applying mech anis1nnowto b`edescribed.

Fluxxisrsupplied by'atubular member 180 which maybe. connectedtoy under pressure not shown. hlemb'er 180v die rectsl a small jetl off-lux. upon the ends of armature conductor leads 182 which have been placed in the slots 183-formed between the metal riser bars 184 a'ssh'owniiiiiv Fig; 8. The armature while passingund'erthis'jet is rotated by a.l spinning Wheel 186 which is mounted and driven ina manner identical a supply; of` flux to vthe spinning wheel 146'.'- Power from the electric motor Vis-supplied to thisspvinningwheel.-"186ibyabelt 188'passed around a pulley 187 integral with the pulley 108? and drivingfarpulley '19.0 anomited on za stubysliaft 192 in a bracketz`194 attachedf to angle: iron 168.l is'V drained from-` the pan*y E the needs or the bracket 201 about the bracket 194 is prevented by a detent 261 on the bracket 201 engaging the stop 262 on bracket 194.

As the armature passes under a jet of flux, it is rotated b-y the spinning wheel 186 which distributes the flux around the entire periphery of the part of the armature to be soldered. This ux is smeared into and between the parts to be soldered by a. brush 203 adjustably attached to a bracket 204 which also adjustably supports the tube 180 and which is attached to the angle iron beam 14. Endwise movement of the armature is prevented by stop 1676i. Flux which is emitted from the jet when there are no armatures under the jet and surplus flux which drips from the parts to-be soldered falls into a pan 268 which has a drain 271 which permits the ux to drain from the pan into a suitable receptacle, not shown.

This machine can be set for various sizes of armatures, the oil spray being adjusted by raising` or lowering member 82 mounted in the bracket 84 by means of the screws 90. Screw 206 permits the flux tube 180 to be adj usted outwardly or inwardly in order to suit the particular size of the arma.- ture to be treated; and the screw 208 permits adjustment of the brush 208 inwardly or out- V.vardly as required. rlhe screws 267 passing through slots 269 in brackets 167 and 167e permit the adjustment of the brackets 167 and 16765 towards and away from the chain 12 thereby permitting various sizes to pass 'through the machine.

O ,oem/tion After the machine has been set in motion, the et supplying the oil spray opened and the flux jet opened, the armatures to be treated are manually placed on the supports 56 and 66 from whence they are conveyed to the left by the conveyors 10 and 12 as viewed in Figs. 1 and 2 to the oil spray. While passing under this oil spray, they are rapidly rotated by wheel 146 to completely cover the end of the shaft 57 with oil and from here they are conveyed through the flux jet where they are rotated by the spining wheel 186 so as to completely cover the portions of the armature to be soldered with a flux, the flux being smeared into the crevices by means of the brush 203 from whence they are moved to the left end of the machine where they may be removed manually or where they may be permitted to drop down into a suitable conveyor for conveying the armatures to the machine for performing the soldering operation. It will be readily seen that when the armatures are dipped into a flux bath as disclosed in application for patent Serial No. 172,479, no solder will cling to the end of the shaft for the reason that the oil protects this. Very little solder will adhere to the commutator segments eX- cepting the portions which have been fluXed, that is, the ends ofthe leads 182, and the risers 184 will be completely soldered. This machine for applying the oil and the flux reduces the amount of labor required, saves on the amount of material needed and produces a more uniform product than has heretofore been attainable. F rom this it can beseen that the cost of production is reduced by eliminating labor, saving' material, and reducing the number of defective pieces. f

lVhile the form of embodiment of the present invention asV herein disclosed, constitutes Y a preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow.

What is claimed is as follows 1. A machine for preparing the leads of armature conductors which are located in slots provided by the riser bars of the commutator for soldering the leads to the lead receiving portions of the riser bars, comprising, in combination, a device to coat the end of the armature shaft adjacent to the cominutator with a liquid to prevent solder from adhering thereto; a device for spraying the linx only on the portions to be soldered; and means for conveying the armature to said devices.

2. A machine for preparing the leads of armature conductors which are located in slots provided by the riser bars of the commutator for soldering the leads to the lead receiving portions of the riser bars, comprising, in combination, a device to coat the end of the armature shaft adjacent to the commutator with a liquid to prevent solder from adhering thereto; a device for spraying the flux only on the portions to be soldered; means for conveying the armature successively to each of said devices; and means for rotating the armature while the lead receiving portions of the communtator are being sprayed by the flux. p

3. A machine for preparing the leads of armature conductors which are located in slots provided by the riser bars of the commutators for soldering the leads to the lead receiving portions of the riser bars, comprising, in combination, a device to coat the end of the armature shaft adjacent tothe commutator with a liquid to prevent solder from adhering thereto; a device for spraying the flux only on the portions to be soldered; means for conveying the armatures successively to each of said devices; means lfor rotating the armature while being coated with oil; and means for rotating the armature while beinguxed.

4:. .A machine for preparing the leads of armature conductors which are located in slots provided by the riser bars of the commntator for soldering the leads to the lead receiving portions of the riser bar, comprising, 1in combination, a device for applying oil to the 4end of the armature shaft; a device for spraying flux only on the portions to be soldered; and a brush for smearing the iux so as to car-.se the fini; to coat the slots provided by the lead receiving portions.

5. A machine for preparing the leads of :armature conductors which are located in slots provided by the riser bars of the coinmutator for soldering the leads to the lead receiving portions of the riser bar, comprising, in combination, a device for applying oil to the end of the armature shaft; a device for spraying flux only on the portions to be soldered; a brush for smearing the flux so as to cause the flux to coat the slots provided by the lead receiving portions; and means for spinning the armature while the flux is sprayed on the lead receiving portions.

6. A machine for preparing the leads of the armature conductors which are located in 'slots provided by the riser bars of the commutaior for soldering the leads to the lead receiving portions of the riser bar, comprising; in combinatioma device for applying oil to the end of the armature shaft; a device for spraying iux only on the lead receiving portions; a brush for smearing the flux so as to cause the flux to coat the slots provided by the lead receiving portions; and means for spinning the armature while in Contact with the brush so as to cause relative movement between the brush and the lead receiving portions7 thereby causing the flux to be smeared into the slots.

7. A machine for preparing the leads of armature conductors which are located in slots provided by the riser bars of the commutator for soldering the leads to the lead receiving portions of the riser bars, comprising, in combination, a device for applying oil to the end of the armature shaft; a device for spraying `flux only on the portions to be soldered; a brush for smearing the flux so as to cause the iux to coat the slots provided by the lead receiving portions; .means for spinning the armature when the oil is applied to the end of the armature shaft; and means for spinning the armature while the flux is sprayed on the lead receiving portions. y

8. A machine for preparing the leads of armature conductors which are located in slots provided by the riser bars of the commutator for soldering the leads to the lead receiving portions of the riser bars, comprising, in combination, a device for applying oil to the end of the armature shaft; a device for spraying iuX only on the lead receiving portions; a

brush for smearing the flux so as to cause the flux to coat the slots provided by the lead vreceiving portions; means for spinning the varmature while the flux is sprayed on the lead receiving portions; means for spinning the armature while being sprayed with the flux and while the flux is being smeared into the slots by the brush.

9. A machine for preparing the leads of i armature conductors which are located in slots provided by the riser bars of the commutator for soldering the leads to the lead receiving portions of the riser bars, comprising, in combination, a device for applying oil vto the end :of the armature shaft; a device for spraying flux only on the lead receiving 30rtions; a brush for smearing the flux so as to cause the flux to coat the slots provided by the lead receiving portions; means for spinning the armature while the oil is sprayed on the end of the shaft; and means for spinning the armature while it is being sprayed with the flux and while the flux is smeared into the slots.

10. A machine for preparing the leads of armature conductors which are located in slots provided by the riser bars of the commutator for soldering the Vleads to the lead receiving portions of the riser bars7 comprising in combination, a device to coat the end of the armature shaft adjacent the commutator with a liquid so as to prevent solder from adhering thereto; a device for fluxing only the portions to be soldered and means for causing a relative movement of the armature and each of said devices.

ll. fr machine for treating armatures to be soldered, comprising in combination, a pair of conveyors, a pair of lugs having semi-cylindrical recesses for supporting the ends of the armature shaft, said lugs-being carried by each conveyor, an oil -spraying device aligned with one of the lugs for coating the end of the shaft carried therein, and a flux spraying device disposed between said lugs for spraying flux on the parts to be soldered.

ntestimony whereof I hereto affix my signature.

LOUIS G. GOAD. 

